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Polygons - Table of Content
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Polygon Classification. Interactive Mind Map. |
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Triangles. |
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Quadrilaterals. |
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Pentagons. |
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Hexagons. |
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Heptagons. |
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Octagons. |
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Nonagon or Enneagon. |
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Proposed Problem
225. Viviani's Theorem Extension, Regular Polygon, Apothem, Distance. |
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Snowflakes: Hexagonal Symmetry and the Golden Rectangle.
The individual ice crystals often have hexagonal symmetry. |
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Engineering the Impossible: Chartres Cathedral
Circle, Square, Triangle. |
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Geometry for Children: Polygon Song
Octagon |
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Geometry for Children: Shapes (Polygons) Sesame Street.
Octagon.
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Stonehenge builders had geometry skills to rival Pythagoras.
Five years of detailed research, carried out by the Oxford University landscape archaeologist Anthony Johnson, claims that Stonehenge was designed and built using advanced geometry.
"The surveyors started by using a rope to create a circle, then laid out
the four corners of a square on its circumference, before laying out a
second similar square, thus creating an inner octagon..."
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Engineering the Impossible: Chartres Cathedral
Circle, Square, Triangle. |
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Crop Circles
and Complexity
Crop Circles
and Sacred Geometry
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Nazca Lines
and Crop Circles
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Looted Peru Moche
Headdress Recovered in London
Octagon: Feline sea god with octopus-like
tentacles |
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Euclid's
Elements Book I, 23 Definitions. One-page visual illustration.
Euclid's
Elements Book. Index |
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Geometry Online
Glossary . Polygon.
Geometry Glossary based on the new New York State
mathematics standards initiative. |
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Interactive Geometry Glossary using AnswerTips
technology.
Polygon. |
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Proposed
Problem 430.
Circumscribed and Inscribed Regular Pentagon, Perpendicular, Areas. |
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